names - Why isn't Shimson's mother named?

Why isn't Shimson's mother named in Pesukim that tell the story? She is featured rather prominently, and the angel appears to her before speaking with both her and Manoaḥ. It would stand to reason that she is as important a character as other barren mothers who prayed for children and were blessed with great leaders for sons. (Aside, to preempt comments comparing Shimson to some of those other leaders: Perhaps he wasn't the greatest leader or a true Navi, but he was great enough for his story to appear in TaNa"Ch, and it's not like his father isn't named.)